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Road To Mach 10
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Author :Curtis Peebles Publisher :AIAA (American Institute of Aeronautics & Astronautics) ISBN 13 : Total Pages :262 pages Book Rating :4.F/5 ( download)
Download or read book Road to Mach 10 written by Curtis Peebles and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2008 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first full-length test-flight history of the X-43 project, written by the project historian at Dryden Flight Research Center. The project achieved the first in-flight testing of a scramjet engine, at speeds of nearly Mach 7 and Mach 10.
Book Synopsis The X-43a Flight Research Program by : Curtis Peebles
Download or read book The X-43a Flight Research Program written by Curtis Peebles and published by BiblioGov. This book was released on 2013-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Technical Reports Servcr (NTRS) houses half a million publications that are a valuable means of information to researchers, teachers, students, and the general public. These documents are all aerospace related with much scientific and technical information created or funded by NASA. Some types of documents include conference papers, research reports, meeting papers, journal articles and more. This is one of those documents.
Author :National Aeronautics and Space Administration (NASA) Publisher : ISBN 13 :9781521402191 Total Pages :174 pages Book Rating :4.4/5 (21 download)
Book Synopsis The X-43A Flight Research Program by : National Aeronautics and Space Administration (NASA)
Download or read book The X-43A Flight Research Program written by National Aeronautics and Space Administration (NASA) and published by . This book was released on 2017-05-30 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This NASA report provides a comprehensive history of the X-43A Hyper-X (Hypersonic Experiment) program. In this NASA project, a supersonic combustion ramjet (scramjet) engine was flight tested on a subscale vehicle. The X-43A Hyper-X Research Vehicle (HXRV) was launched from a B-52B mothership, then boosted to the test speed by a modified Pegasus rocket first stage, called the Hyper-X Launch Vehicle (HXLV). Once at the proper speed and altitude, the X-43A separated from the booster, stabilized itself, and then the engine test began. Although wind-tunnel scramjet engine tests had begun in the late 1950s, before the Hyper-X program there had never been an actual in-flight test of such an engine integrated with an appropriate airframe. Thus, while the scramjet had successfully operated in the artificial airflow of wind tunnels, the concept had yet to be proven in "real air." These conditions meant changes in density and temperature, as well as changes in angle of attack and sideslip of a free-flying vehicle. A wind tunnel is limited in its ability to simulate these subtle factures, which have a major impact on almost any vehicle, but especially that of a scramjet's performance. The Hyper-X project was to provide a real-world benchmark of the ground test data. The full scale X-43A engine would be operated in the wind tunnel, and then flown, and the data from its operation would then be compared with projections. If these matched, the wind tunnel data would be considered a reliable design tool for future scramjet. If there were significant differences, the reasons for these would have to be identified. Until such information was available, scramjets would lack the technological maturity to be considered for future space launch or high-speed atmospheric flight vehicles. What would eventually become the Hyper-X project had its start within the NASP. This was ironic, as NASP project managers rejected the very idea of a short-term, limited-goal effort built around a subscale vehicle. It took a long time for them to finally accept this approach. Among reasons that the NASP program was focused on development of a full-scale test aircraft was the belief of many researchers and contractors that data from a subscale scramjet could not be scaled up to a full-size engine without introducing errors. Indeed, as time passed, the contractors found that they became less confident that they could predict general performance from specific data points. There were uncertainties in many data points, and those uncertainties changed. For these reasons, all of the contractors believed that only a prototype near-full-scale vehicle with a maximum speed above Mach 20 would give them real confidence in their performance predictions for a single-stage-to-orbit design.
Book Synopsis The X-43a Flight Research Program by : Curtis Peebles
Download or read book The X-43a Flight Research Program written by Curtis Peebles and published by CreateSpace. This book was released on 2013-12 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: During an aerospace engineer's undergraduate studies, he or she will attend classes in aerodynamics, thermodynamics, structures, stability and control, dynamics, design, propulsion, and computer science, along with the related courses in mathematics, physics, statistics, and chemistry required to understand the material. Upon graduation, the new engineer will have acquired a basic knowledge of how to build an aerospace vehicle. What only comes through experience, however, is the understanding of the inevitable imperfect process through which an aerospace vehicle is built. This is the adventure of turning a basic concept into functional hardware. Engineers working on a project must often deal with ambiguous situations. They are routinely asked by management to provide risk assessments of a project, yet even after careful analysis uncertainties remain. The project must be accomplished within finite limits of time and money. The question an engineer answers is whether the solution to potential problem is worth the cost and schedule delay, or if the solution might actually be worse than the problem it is meant to solve. Review protocols are established to ensure that an unknown has not been overlooked. But these cannot protect against an unknown unknown.
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